* {
    margin: 0;
    padding: 0;
}

/*清除内外边距*/
body {
    background-color: #f3f5f7;
    -webkit-user-drag: none;
}

/*背景颜色*/
.w {
    width: 1300px;
    margin: 0 auto;
}

/*版心*/
li {
    list-style: none;
}

/*去除li的小圆点*/
input {
    outline: none;
}

/* 去掉轮廓线 */
a {
    text-decoration: none;
    color: #333;
}

/*去除a的下划线*/
img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.clearfixDouble::after .clearfixDouble::before {
    content: "";
    display: table;
}

.clearfixDouble::after {
    clear: both;
}

textarea {
    resize: none;
}

/*文本域防拖拽*/